NT1310 Unit 7 Exercise 1

NT1310 Unit 7 Exercise 1

Definitions
1. Crosstalk - Unwanted transfer of signals between communication channels.
2. Waveguides – A metal tube or other device confining and conveying microwaves.
3. FTTH – Fiber to the x is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications.
4. Simplex – A fiber-optic cable or cord carrying a single fiber.
5. Half Duplex – Allowing the transmission of signals in both directions but not simultaneously.
6. Full Duplex – Refers to the transmission of data in two directions simultaneously.
7. Photodiode – A semiconductor diode that, when exposed to light, generates a potential difference or changes its electrical resistance.
8. Amplitude Modulation – The modulation of a wave by varying its amplitude, used chiefly as a means of radio broadcasting, in which an audio signal is combined with a carrier wave.
9. Analog Transmission – A transmission method of conveying voice, data, image, signal or video information using a continuous signal which varies in amplitude, phase, or some other property in proportion to that of a variable.
10. Digital Transmission – The use of discrete electrical pulses, light pulses, or other discrete signals to create binary codes for data communications.
11. Sample Rate – The sampling rate, sample rate, or sampling frequency defines the number of samples per unit of time taken from a continuous signal to make a discrete signal.
12. Electromagnetic Wave – A wave of energy having a frequency within the electromagnetic spectrum and propagated as a periodic disturbance of the electromagnetic field when an electric charge oscillates or accelerates.
13. Refraction – The fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
14. Medium – The intervening substance through which impressions are conveyed to the...